package henu.javaweb.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.net.URLEncoder;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import henu.javaweb.bean.Student;
import henu.javaweb.dao.DaoFactory;
import henu.javaweb.dao.StudentDao;
import henu.javaweb.dao.TeacherDao;
import henu.javaweb.util.WebDbPool;

/**
 * Servlet implementation class AddTeacherServlet
 */
@WebServlet("/AddTeacherServlet")
public class AddTeacherServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	/**
	 * @see HttpServlet#HttpServlet()
	 */
	public AddTeacherServlet() {
		super();
		// TODO Auto-generated constructor stub
	}

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
	 *      response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		response.getWriter().append("Served at: ").append(request.getContextPath());
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) 
			throws ServletException, IOException {
		// TODO Auto-generated method stub
		request.setCharacterEncoding("utf-8");
		response.setCharacterEncoding("utf-8");
		PrintWriter out=response.getWriter();

		int sta = DaoFactory.getTeacherDaoInstance().add(request);
		if (sta == 0) {
			String a = URLEncoder.encode("添加失败", "UTF-8");
			out.print("<script type=\'text/javascript\'>alert(decodeURIComponent('"+a+"'));history.go(-1);</script>");
		}else{
			String a = URLEncoder.encode("添加成功", "UTF-8");
			out.print("<script type=\'text/javascript\'>alert(decodeURIComponent('"+a+"'));history.go(-1);</script>");
		}
	}

}
